Mitch started karting at the age of 6 and won the New Zealand Grand Prix at 16. Mentored by former F1 racer Mark Webber, the young driver went on to win the 2012 GP3 title. Moving to GP2 in 2013 and at just 18 years of age, while still a rookie, Mitch became the youngest driver in GP2 history to stand on the podium after finishing third in Sepang, Malaysia. More success followed in 2015 when Mitch finished second at the 24 hours in Sepang, Malaysia.
Mitch made his ABB FIA Formula E World Championship debut with Jaguar Racing in 2016 when the British team returned to racing. In his second season with the team, Mitch, widely seen as one of the quickest drivers on the grid, secured a series of firsts for Jaguar Racing including a super pole, a pole position and a podium finish.
In 2019 his hard work paid off with his first ABB FIA Formula E victory in Rome. This was followed up by two further podiums in Bern and New York which led to a top five finish in the drivers' standings.
During the 19/20 season Mitch took a dominant victory in Mexico City and Pole Position and a podium in Santiago, Chile. He finished seventh overall in the teams’ standings. Mitch was joined in season 7 by driver Sam Bird to form one of the strongest driver line-ups on the grid.
The exciting season 7 saw Mitch finishing 4th in the Drivers' Championship – his highest position to date. He had podium finishes in Diriyah, Rome, Monaco, London, and Berlin, as well as setting fastest laps in Rome, New York City and London.